#303 GOTOs in EXECUTE

[Sylwester Arabas]

IDL docs state that GOTOs within EXECUTE are not allowed.
In fact they work:

IDL> a= execute('goto, b & a: print, 1 & b: print,2')
2

GDL> a= execute('goto, b & a: print, 1 & b: print,2')
% Undefined label.

[Sylwester Arabas]

Moved to github: https://github.com/gnudatalanguage/gdl/issues/111